Twin City Fan Companies, Ltd. is a group of fan companies that manufacture and sell a complete range of centrifugal and axial propeller fans, power roof ventilators and related equipment. Twin city provides air handling units, air supply and filter house, HVAC systems, rooftop exhaust and many more.

Twinco, designs and supplies the temperature control systems on thousands of projects for the major HVAC Mechanical Contractors. These projects include schools, financial institutions, office buildings, residences, government facilities, theaters, retail stores, factories and hospitals.

U.S. Climate Alliance states are committed to taking real, impactful, on-the-ground action that urgently addresses the climate challenge. In becoming an Alliance member, member states commit to achieve the Paris Agreement’s goal of keeping temperature increases below 1.5 degrees Celsius globally.

The mission of the Department of Energy is to ensure America's security and prosperity by addressing its energy, environmental, and nuclear challenges through transformative science and technology solutions.

UEi Test Instruments designs, manufactures, market, service and support portable test equipment that every day enables thousands of professionals to do their jobs around the world. They provide Multi, digital, resistance, temperature, humidity voltage testers, leak detectors, combustion gas, and carbon monoxide analyzers.

UEMSI/HTV provides color push camera systems to inspect ductwork, pipelines, heat exchangers, etc. Also high pressure sewer hose, fittings, and swage equipment.

UK Cool and Heat is the home of dedicated design, installation and maintenance teams, and users can count on them to cater to their needs if they’re looking for a prompt, professional and unbeatable service.

UK Refrigeration & Air Conditioning manufactures a range of refrigeration and air conditioning systems for commercial and industrial purposes. Users can also rely on them for domestic air source heat pumps, cold store construction and maintenance and repairs throughout the whole of the UK.

Around the globe, UL works to help customers, purchasers and policymakers navigate market risk and complexity. UL builds trust in the safety, security and sustainability of products, organizations and supply chains – enabling smarter choices and better lives. Their robust suite of offerings includes testing, inspection, auditing, certification, marketing claim verification, training, advisory services and software solutions.

Ultra Air was founded in 1999 through the enterprise and foresight of its principal, Anthony Licastro whose industry knowledge and experience saw him recognize an opportunity to improve upon the work practices. It is an Australian company providing residential and commercial air conditioning sales, installations, yearly services and corrective maintenance to the building industry and private market.

ULVAC makes the HELiOT line of portable leak detectors, automatic leak test systems, helium charging and recovery systems and industrial vacuum pumping stations for manufacturing.

Unicel Autotech is a major provider of reliable and cost-effective generator rentals, sales, and installation services in India. They cater to a wide range of industries, events, and projects with short-term or long-term power needs.

The Unico System is a small-duct, high-velocity central heating and air conditioning system. Ideal for custom & new home construction, historic preservation, older home retro-fit, and commercial applications, The Unico System takes less than one-third the space of a traditional HVAC system.

Uniflair are a supplier of technologically advanced cooling solutions for critical environments with a policy of continual innovation. Uniflair invests over 5% of turnover (not profit) into research and development of both new cooling technologies and upgrades to existing products.

Unigulf Development LLC and Air Conditioning Industries LLC are a part of the United Arab Emirates based Unigulf Group. The group has grown to be one of the pioneer player in the HVAC industry. Unigulf Development is known for its service and trust in the HVAC-R Sector in the MEP Industry.

Unikelvin, headquartered in Bengaluru, India, is a leading provider of turnkey HVAC solutions for Commercial, Industrial and residential spaces. They cater to commercial office spaces, residential apartments, industrial air-conditioning and ventilation for Food, Pharma, Biotech & Healthcare Facilities.

United A/C Supply is a distributor of HVAC/R products in Houston, Texas. They deal with all Air conditioning, Refrigeration, Heating and Ventilation needs and represent all major manufacturers.

United AC Supply is one of the premier distributors of HVAC/R products in Houston, Texas, USA. They deal with all Air Conditioning, Refrigeration,Heating and Ventilation needs and represent all major manufacturers across the country.

United Refrigeration, Inc. is one of the largest distributors of refrigeration, air conditioning and heating parts and equipment in North America.

United Supply Company has been providing homeowners and contractors with HVAC and Plumbing needs for nearly 100 years. They carry product lines from Ruud, Hart & Cooley, Honeywell, Cerro, Weil-McLain, Simpson Dura-Vent and many other brands.

Unity Cooling Systems is a commercial refrigeration company in Houston , has been providing quality cooling systems to businesses for over 20 years. They specialize in custom/build walk-in coolers and freezers, meat cases, milk cases, commercial air conditioning, and air conditioning repair.

Universal Air Supply is a wholesale and retail manufacturer of air-conditioning and refrigeration equipment, parts, and supplies.

Universal Electronics Inc. is the pioneer in universal control and sensing technologies for the smart home. Its broad portfolio of over 300 pending and current patents includes the world’s most complete database to connect and control thousands of entertainment viewing devices.

Universal Piping Industries (UPI) is a pioneer in the design, fabrication and installation of industrial piping & plumbing systems and HVAC systems for industrial/commercial facilities.

Universal Supply Group, Inc. is a full-service technical supply house and distributor of heating, ventilating and air conditioning (HVAC) equipment, parts and accessories.

Uniweld Products, Inc. is a U.S. manufacturing company that deals with gas, soldering, brazing, heating and welding equipment and accessories, test equipment, pressure gauges, alloys, manifolds and charging equipment, leak detectors, vacuum pumps, tubing tools.

Unlimit DB is committed to the development of design and construction in the Czech Republic. They recognize the importance and impact of this sector and aim to be a pioneer in providing innovative and quality solutions.

URI is a a distributor of air conditioning and refrigeration compressors. They remanufacturer open and semi-hermetic types 5-125hp. URI has been serving the HVAC and refrigeration services industry for more than forty years.

USA Industries is an ISO 9001:2015 manufacturer and supplier of piping isolation and testing products, tube plugs, orifice plates, and tools for heat exchangers for rental or sale.

USA Refrigerants distributes refrigerants to HVAC Contractors and HVAC Wholesalers through a comprehensive network of distribution centers and reclamation facilities, providing fast and efficient deliveries. Since 1992, USA Refrigerants is a national refrigerant distributor known for reliable, efficient service for refrigerant sales and BuyBack needs.